SOLUTION: Determine which two equations represent parallel lines. (a) y = –7x + 4 (b) y = 7x + 4 (c) y = x + 4 (d) y = –7x + 9

Algebra ->  Systems-of-equations -> SOLUTION: Determine which two equations represent parallel lines. (a) y = –7x + 4 (b) y = 7x + 4 (c) y = x + 4 (d) y = –7x + 9       Log On


   

Question 105419: Determine which two equations represent parallel lines.
(a) y = –7x + 4
(b) y = 7x + 4
(c) y = x + 4
(d) y = –7x + 9
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
Y=mX+b WHERE m=SLOPE.
THUS THE 2 EQUATIONS THAT HAVE THE SAME SLOPE ARE A) & D).
BOTH HAVE A SLOPE OF -7.